The correct answer is - greenhouse gases.
The humans have been having a very big impact on the composition of the atmosphere in the past century, and that has started to result into changes in the climate patters all over the globe.
The main problem appears with the huge amounts of greenhouse gases released into the atmosphere, mostly carbon dioxide, but also methane. These two gases have properties that enable the greenhouse effect, which means that they are able to trap bigger amount of heat in the Earth's atmosphere, thus making it warmer.
If the ongoing trend continuous with the release of the greenhouse gases there will for sure be devastating effects on everyone and everything on the planet not so far in the future.
Hello There! ^_^
Your question: What were the three main Indian groups before European explorers arrived..?
Your answer: The Mayan, the Aztecs and the Incas were the three main Indian groups before European explorers arrived.
Hope this helps!
Minerals can not be made of organic materials
Rivers rise from higher slope and flow towards the lower due to the fact that there's more pressure the lower it goes.
<h3>What is a river?</h3>
It should be noted that a river simply means a large natural stream of water flowing in a channel into the sea.
In this case, rivers rise from higher slope and flow towards the lower due to the fact that there's more pressure the lower it goes.
Learn more about river on:
brainly.com/question/26252054
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The position on earth's surface directly above the earthquake source is called the epicenter.
